TimGeyssens
128 lines
3.7 KiB
C#
128 lines
3.7 KiB
C#
using HtmlAgilityPack;
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using MarkdownSharp;
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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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using System.Threading.Tasks;
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using System.Web;
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using uForum.Library;
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using uForum.Models;
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using uForum.Services;
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using Umbraco.Core.Models;
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using Umbraco.Core.Services;
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namespace uForum
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{
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public static class ForumExtensions
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{
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public static IEnumerable<Comment> ChildComments(this Comment comment)
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{
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if (comment.HasChildren)
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{
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using (var cs = new CommentService())
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{
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return cs.GetChildComments(comment.Id);
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}
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}
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return new List<Comment>();
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}
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public static string ConvertToRelativeTime(this DateTime date)
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{
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var TS = DateTime.Now.Subtract(date);
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var span = int.Parse(Math.Round(TS.TotalSeconds, 0).ToString());
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if (span < 60)
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return "1 minute ago";
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if (span >= 60 && span < 3600)
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return string.Concat(Math.Round(TS.TotalMinutes), " minutes ago");
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if (span >= 3600 && span < 7200)
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return "1 hour ago";
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if (span >= 3600 && span < 86400)
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return string.Concat(Math.Round(TS.TotalHours), " hours ago");
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if (span >= 86400 && span < 172800)
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return "1 day ago";
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if (span >= 172800 && span < 604800)
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return string.Concat(Math.Round(TS.TotalDays), " days ago");
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if (span >= 604800 && span < 1209600)
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return "1 week ago";
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if (span >= 1209600 && span < 2592000)
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return string.Concat(Math.Round(TS.TotalDays), " days ago");
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if (span >= 2592000 && span < 26920000)
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return "Several months ago";
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return "More then a year ago";
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}
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public static HtmlString Sanitize(this string html){
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// Run it through Markdown first
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var md = new Markdown();
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html = md.Transform(html);
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// Linkify images if they are shown as resized versions (only relevant for new Markdown comments)
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var doc = new HtmlDocument();
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doc.LoadHtml(html);
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var root = doc.DocumentNode;
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if (root != null)
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{
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var images = root.SelectNodes("//img");
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if (images != null)
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{
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var replace = false;
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foreach (var image in images)
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{
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var src = image.GetAttributeValue("src", "");
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var orgSrc = src.Replace("rs/", "");
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if (src == orgSrc || image.ParentNode.Name == "a") continue;
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var a = doc.CreateElement("a");
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a.SetAttributeValue("href", orgSrc);
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a.SetAttributeValue("target", "_blank");
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a.AppendChild(image.Clone());
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image.ParentNode.ReplaceChild(a, image);
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replace = true;
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}
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if (replace)
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{
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html = root.OuterHtml;
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}
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}
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}
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return new HtmlString(Utills.Sanitize(html));
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}
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public static bool DetectSpam(this Comment comment)
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{
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comment.IsSpam = AntiSpam.SpamChecker.IsSpam(comment.Author(), comment.Body);
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return comment.IsSpam;
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}
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public static bool DetectSpam(this Topic topic)
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{
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topic.IsSpam = AntiSpam.SpamChecker.IsSpam(topic.Author(), topic.Body);
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return topic.IsSpam;
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}
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}
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}
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